Purposes and characteristics of electric ventilation valve 

 The valve body using the same materials and processed into ring, using electric or pneumatic drive. Body temperature with the selection of its application, depending on the nominal pressure ≤ 0.6MPa, generally applicable to industry, metallurgy, environmental protection, adjust the media flow pipe for ventilation purposes. 

 Electric ventilation valve of its main features are: 
 1, novel design, reasonable, unique structure, light weight, open and close quickly. 
 2, operating torque is small, easy to operate, saving smart. 
 3, the use of suitable materials to meet the needs of low, medium, high temperature of the different media, and corrosive media, etc. 

 Standard 
 Design standards: GB/T12238-1989 JB/T8692-1998 
 Flange size: GB/T9115.1-2000 
 Structure length h: GB/T12221-1989 
 Pressure test: GB/T13927-1992; JB/T9092-1999 







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